Patent · US Expired

Flat screen for an electrophotographic printing device

US5150158A · kind A · utility

1Cited by
17References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 29, 1990
Grant dateSep 22, 1992
Priority date
Expiry dateOct 29, 2010

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/04027
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrophotographic printing device having an arcuate photoconductive member (12) includes a flat screen member (32) that is spaced apart from the arcuate photoconductive member (12). A plurality of arcuate opaque lines are disposed on the screen member (32) such that the plurality of arcuate opaque lines are centered along the longitudinal axis thereof. Each of the lines is dimensioned such that it represents the mirror image of the shadow on the photoconductive member that would exist if a straight line were disposed on the screen at the same position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.